Sear spring, used. There are differences in the way they are made (coil number, length) but this ismostly dependent on which countrymade them and not so much as to model.

Sear pin and also trigger pin.Used on all Mauser's but theycan be hard to put in becausethey were made by so many different countries and the specksvary (can't tell to look at them). Pinsthat look the same but are longer arefloor plate catch pins (trigger pins werealso used for this catch).